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Salary
$165k – $200k per year
Location
In office (San Jose)
Seniority
Senior · 8+ years exp
Visa
No sponsorship (stated in the posting)

Confirmed on the employer's own hiring board on Oct 29, 2026. First seen by Alion on Aug 4, 2026.

Overview
Company
Impact
Profile match
For over 50 years, Therma has been delivering client-driven mechanical solutions as one of California's leading commercial HVAC contractors.

San Jose, CA (on site), Full-time

Therma, a Legence company, is seeking a highly motivated Senior Mechanical Engineer with +8 years of experience in the HVAC industry. The ideal candidate is a proactive leader who excels in mentoring engineers, overseeing projects, and engaging directly with clients to deliver high-quality solutions. This role encompasses every phase of the design-build project process, from initial design to construction administration support. As an integral member of our engineering team, you will oversee the entire design process - from conceptualization to the finalization of detailed design and construction documents. Additionally, you will coordinate efforts across multiple disciplines - including mechanical, electrical, plumbing, architectural, civil, structural, controls, general construction, and ownership groups – contributing to efficient and timely project progress in a fast-paced environment. 

Responsibilities:

Bespoke building mechanical and plumbing system designs

Design heating, cooling, and ventilation load calculations

Conduct design reviews and provide feedback to engineers, project managers, and project executives to improve product quality, efficiency and performance

Oversee and manage multiple projects, ensuring timely delivery, quality assurance, and budget adherence

Interface with clients, architects, and project stakeholders to develop innovative and sustainable mechanical designs

Generate, review and approve technical drawings, submittals, and specifications as required to ensure compliance with project goals

Evaluate project submittals, shop drawings, and RFIs to determine conformance with contract documents and design requirements

Research and analyze customer project requirements, specifications, and data to assess feasibility, program application, and maintenance requirements

Collaborate with cross-functional teams to resolve problems, implement solutions, and optimize project outcomes

Stay updated on industry trends and advancements in mechanical engineering and energy-efficient building solutions

Providing technical guidance and professional development support to the team

Requirements:

Bachelor’s degree in Mechanical Engineering (or related field)

Minimum 8 years of engineering experience as a Mechanical Engineer, preferably in the HVAC design-build environment

Licensed Professional Engineer (PE) in the state of California and MEOR Responsibilities as required

Proficiency in AutoCAD, Revit and Bluebeam

Expert knowledge of California Building Code, Title 24

Expert knowledge of ASHRAE guideline(s) 62.1, 55, 90.1

Expertise in HVAC systems, cooling and heating plants, and MEP design.

Document Technical Review & Quality Control

Expertise in Project Coordination and Project Management 

Experience in client relations and relationship management 

Positive attitude, team player, commitment to achieving a common goal  

Engineering Team Development, Mentoring, and Leadership

LEED Certification (preferred)

Knowledge of HVAC BAS/Controls

Expertise in System Basis of Design (BOD) and Sequence of Operation (SOO) development 

Salary: $165k-$200k, depending on experience

We are unable to provide immigration sponsorship for this position. #LI-JS1 #LI-Onsite

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